My dear chap, forget the abstruse realm of equations whose "fields" most normal people have no clue about, just have a closer look at the ubiquitous E=MC2 equation. Energy = (The mass of the object) multiplied by (The speed of light squared). Rearrange
The reason that you cannot reach the speed of light is because you become heavier and heavier and heavier the faster you go. In fact the closer you get to the speed of light, the closer you approach infinite density. This means that you require infinite energy
which is what we (unfortunately) do not have.